CVE-2020-12406

Mozilla Developer Iain Ireland discovered a missing type check during unboxed objects removal, resulting in a crash. We presume that with enough effort that it could be exploited to run arbitrary code. This vulnerability affects Thunderbird < 68.9.0, Firefox < 77, and Firefox ESR < 68.9.

CVSS v3.0 8.8 HIGH
CVSS v2.0 9.3 HIGH

8.8^/10

CVSS v3.0 : HIGH

V3 Legend

Vector :

Exploitability : 2.8 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

9.3^/10

CVSS v2.0 : HIGH

V2 Legend

Vector : AV:N/AC:M/Au:N/C:C/I:C/A:C

Exploitability : 8.6 / Impact : 10.0

Access Vector NETWORK

Access Complexity MEDIUM

Authentication NONE

Confidentiality Impact COMPLETE

Integrity Impact COMPLETE

Availability Impact COMPLETE

References

Link	Resource
https://www.mozilla.org/security/advisories/mfsa2020-20/	Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2020-21/	Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2020-22/	Vendor Advisory
https://bugzilla.mozilla.org/show_bug.cgi?id=1639590	Issue Tracking Vendor Advisory
https://usn.ubuntu.com/4421-1/	Third Party Advisory

Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:mozilla:thunderbird::::::::
	cpe:2.3:a:mozilla:firefox::::::::
	cpe:2.3:a:mozilla:firefox_esr::::::::

Configuration 2 (hide)

OR	cpe:2.3:o:canonical:ubuntu_linux:18.04::::lts:::
	cpe:2.3:o:canonical:ubuntu_linux:19.10:::::::*
	cpe:2.3:o:canonical:ubuntu_linux:20.04::::lts:::
	cpe:2.3:o:canonical:ubuntu_linux:16.04::::esm:::

Information

Published : 2020-07-09 08:15

Updated : 2023-01-27 08:48

NVD link : CVE-2020-12406

Mitre link : CVE-2020-12406

JSON object : View

CWE

CWE-345

Insufficient Verification of Data Authenticity

Products Affected

mozilla

firefox
firefox_esr
thunderbird

canonical

ubuntu_linux

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8.8 /10